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largest and heaviest slewing bearings used in harbour cranes

largest and heaviest slewing bearings exported to Europe, OD6000mm, weight 13 tones, used in maritime cranes, offshore cranes, etc.

Manufacturer - THB BEARINGS Co.,LTD
Model # - 161.20.0710.890.11.1503
Submitted By - THB BEARINGS CO.,LTD (Manufacturer, Provider)
Country - China
Category - Industrial : Machine : Cranes, Excavators,

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THB 6.0 large sized slewing bearingtriple row cylindrical roller slewing ring 02triple row cylindrical roller slewing ring 03


construction :   three row
rolling elements :   roller
material :   42CrMo4V
OD :   6019.2
rollers material :   100Cr6


As the largest and heaviest slewing ring exported from China, the outer diameter is over 6000mm and the weight is over 13 metric tons.
The structure is triple row cylindrical roller type with external gear.
In order to have the best and stable mechanical property, the 3 rings are forged and each ring is unitary.
In order to guarantee the hardened depth on the raceway, a test was made before the induction hardening.
The slewing ring has been exported to Europe, being used on a ship, as the bottom of cable basket.
The cages of 1st and 2nd row of rollers are made of aluminum alloy. Nylon cages are also available.
The cages of the 3rd row of rollers which is called "spacer" are made of nylon.
During the final assembly and before the packing, the slewing ring is lubricated by Lithium grease.


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